[roel_v]

OK yeah then your case doesn't apply to my general question. I imagine that for something that is as visual as your topic, animation would be extra useful though :) (like showing with a slider how reflowing works in certain edge cases or something) Not to egg you on of course :)

And I see what you're saying on how it's hard to build on someone else's work, and how what is relevant to illustrate heavily depends on the viewpoint of the author. Still I can't shake the feeling that there is so much duplication. Maybe I should just look at differently. Anyway, thanks for weighing in.